Also, although this won't help you get rid of existing dust (unless you buy the difference of the minimum tradable amount of a coin first), make sure you have some BNB coin (Binance Coin) and set 'use BNB for fees'. The benefits are two-fold:
- You can trade nice round numbers with the fees coming out of your BNB balance, theoretically leaving no dust
- You'll save money with discounted fees for using BNB coin